CNN-based fully automatic mitral valve extraction using CT images and existence probability maps
Research output: Contribution to journal › Journal article › Research › peer-review
Standard
CNN-based fully automatic mitral valve extraction using CT images and existence probability maps. / Masuda, Yukiteru; Ishikawa, Ryo; Tanaka, Toru; Aoyama, Gakuto; Kawashima, Keitaro; Chapman, James V.; Asami, Masahiko; Pham, Michael Huy Cuong; Kofoed, Klaus Fuglsang; Sakaguchi, Takuya; Satoh, Kiyohide.
In: Physics in Medicine and Biology, Vol. 69, No. 3, 035001, 2024.Research output: Contribution to journal › Journal article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - CNN-based fully automatic mitral valve extraction using CT images and existence probability maps
AU - Masuda, Yukiteru
AU - Ishikawa, Ryo
AU - Tanaka, Toru
AU - Aoyama, Gakuto
AU - Kawashima, Keitaro
AU - Chapman, James V.
AU - Asami, Masahiko
AU - Pham, Michael Huy Cuong
AU - Kofoed, Klaus Fuglsang
AU - Sakaguchi, Takuya
AU - Satoh, Kiyohide
N1 - Publisher Copyright: © 2024 Institute of Physics and Engineering in Medicine.
PY - 2024
Y1 - 2024
N2 - Objective. Accurate extraction of mitral valve shape from clinical tomographic images acquired in patients has proven useful for planning surgical and interventional mitral valve treatments. However, manual extraction of the mitral valve shape is laborious, and the existing automatic extraction methods have not been sufficiently accurate. In this paper, we propose a fully automated method of extracting mitral valve shape from computed tomography (CT) images for the all phases of the cardiac cycle. Approach. This method extracts the mitral valve shape based on DenseNet using both the original CT image and the existence probability maps of the mitral valve area inferred by U-Net as input. A total of 1585 CT images from 204 patients with various cardiac diseases including mitral regurgitation were collected and manually annotated for mitral valve region. The proposed method was trained and evaluated by 10-fold cross validation using the collected data and was compared with the method without the existence probability maps. Main results. The mean error of shape extraction error in the proposed method is 0.88 mm, which is an improvement of 0.32 mm compared with the method without the existence probability maps. Significance. We present a novel fully automatic mitral valve extraction method from input to output for all phases of 4D CT images. We suggest that the accuracy of mitral valve shape extraction is improved by using existence probability maps.
AB - Objective. Accurate extraction of mitral valve shape from clinical tomographic images acquired in patients has proven useful for planning surgical and interventional mitral valve treatments. However, manual extraction of the mitral valve shape is laborious, and the existing automatic extraction methods have not been sufficiently accurate. In this paper, we propose a fully automated method of extracting mitral valve shape from computed tomography (CT) images for the all phases of the cardiac cycle. Approach. This method extracts the mitral valve shape based on DenseNet using both the original CT image and the existence probability maps of the mitral valve area inferred by U-Net as input. A total of 1585 CT images from 204 patients with various cardiac diseases including mitral regurgitation were collected and manually annotated for mitral valve region. The proposed method was trained and evaluated by 10-fold cross validation using the collected data and was compared with the method without the existence probability maps. Main results. The mean error of shape extraction error in the proposed method is 0.88 mm, which is an improvement of 0.32 mm compared with the method without the existence probability maps. Significance. We present a novel fully automatic mitral valve extraction method from input to output for all phases of 4D CT images. We suggest that the accuracy of mitral valve shape extraction is improved by using existence probability maps.
KW - computed tomography
KW - machine learning
KW - mitral valve
KW - point cloud
KW - shape reconstruction
U2 - 10.1088/1361-6560/ad162b
DO - 10.1088/1361-6560/ad162b
M3 - Journal article
C2 - 38100829
AN - SCOPUS:85182500870
VL - 69
JO - Physics in Medicine and Biology
JF - Physics in Medicine and Biology
SN - 0031-9155
IS - 3
M1 - 035001
ER -
ID: 380216233